package com.test.it.ruiji.filter;

import com.alibaba.fastjson.JSON;
import com.test.it.ruiji.common.R;
import lombok.extern.slf4j.Slf4j;
import org.springframework.util.AntPathMatcher;

import javax.servlet.*;
import javax.servlet.annotation.WebFilter;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;

@WebFilter(filterName = "loginCheckFilter",urlPatterns = "/*")
@Slf4j
public class LoginCheckFilter implements Filter {
    public static  final AntPathMatcher PATH_MATCHER = new AntPathMatcher();
    @Override
    public void doFilter(ServletRequest servletRequest, ServletResponse servletResponse, FilterChain filterChain) throws IOException, ServletException {
        HttpServletRequest request = (HttpServletRequest) servletRequest;
        HttpServletResponse response = (HttpServletResponse) servletResponse;
        String requestURI = request.getRequestURI();
        log.info("拦截路径:{}",requestURI);
        String[] urls = {
                "/employee/login",
                "/employee/logout",
                "/backend/**",
                "/front/**"

        };


        boolean checked = check(urls,requestURI);
        if(checked){
            log.info("无需拦截");
            filterChain.doFilter(request,response);
            return;

        }
        log.info("d{}",request.getSession());

        if ( request.getSession().getAttribute("employee") != null){
            log.info("用户已登录");
            filterChain.doFilter(request,response);
            return;
        }
        log.info("用户未登录");
        response.getWriter().write(JSON.toJSONString(R.error("NOTLOGIN")));

    }
    public boolean check(String[] urls,String requestURI){
        for (String url : urls) {
            boolean match = PATH_MATCHER.match(url, requestURI);
            if(match){
                return true;
            }
        }
        return false;
    }
}
